抗こう磁じ力りょく

noun

coercivity; coercive force

Technical term in physics and materials science; the magnetic field strength required to reduce the magnetization of a ferromagnetic material to zero after it has been saturated. Often contrasted with 保磁力 (coercivity in the context of permanent magnets).

See also: 保磁力

• この磁じ性せい材ざい料りょうは抗こう磁じ力りょくが高たかいため、外がい部ぶ磁じ場ばの影えい響きょうを受うけにくい。

  This magnetic material has high coercivity, so it is not easily affected by external magnetic fields.

• 抗こう磁じ力りょくの測そく定ていには専せん用ようの装そう置ちが必ひつ要ようだ。

  Measuring coercive force requires specialized equipment.